console.log(
    { 2.72: { 3.14: 1 }, 3.14: 1 } + 1,
    { 2.72: { 3.14: 1 }, 3.14: 1 }[2.72] + 1,
    { 2.72: { 3.14: 1 }, 3.14: 1 }["2.72"] + 1,
    { 2.72: { 3.14: 1 }, 3.14: 1 }[3.14] + 1,
    { 2.72: { 3.14: 1 }, 3.14: 1 }[2.72][3.14] + 1,
    { 2.72: { 3.14: 1 }, 3.14: 1 }[2.72]["3.14"] + 1
);
